Mark Jack Der Mesropian, D.O.
Anesthesiology Physician · Long Branch, NJ
Mark Jack Der Mesropian, D.O. is an anesthesiology physician with a practice address in Long Branch, New Jersey, and NPI 1124309349, issued on Sep 1, 2011. Check the license (New Jersey 25MB10061600, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Mark Jack Der Mesropian
- Credential
- D.O.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License numbers
- 25MB10061600 NJ
051857 CT
Self-reported in NPPES; status is on the state search - Practice location
- 300 2ND Ave, Long Branch, NJ 07740
- Phone
- (732) 222-5200
- Enumerated
- Sep 1, 2011
- Record last updated
- Jan 23, 2023
- Medicare enrollment
- Enrolled (PECOS I20221028000496); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 1,714 in New Jersey → Look up another NPI →
Also registered at 300 2ND Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mark Jack Der Mesropian in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
Search for license 25MB10061600Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 84.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Rwjbh Observation Associates LLCLong Branch, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Jack Der Mesropian among 1,714 anesthesiology physician records in New Jersey
Mark Jack Der Mesropian, D.O. is one of 1,714 anesthesiology physician records with a practice address in New Jersey. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 74% of them.
- NPI issued2011 · 74% of these records are older, 24% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2009 · median 2002 among the 1,178 with a school on file
- Record last updated2023 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
25 anesthesiology physician records list a practice address in Long Branch
They are 25 of the 663 NPPES records with a practice address in Long Branch, and 1,714 anesthesiology physician records in New Jersey.
All 1,714 in New Jersey → Every provider in Long Branch → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Bing Du, MDLong Branch, NJ 077401912904434
- Sitalakshmi Elango, MDLong Branch, NJ 077401821095340
- Waheed Eraky, MDLong Branch, NJ 077401649277161
- Michael Flashburg, MDLong Branch, NJ 077401093712515
- Susan Friedman, MDLong Branch, NJ 077401902803422
- Keiron Greaves, MDLong Branch, NJ 077401447257969
- Andrew Johnson, DOLong Branch, NJ 077401386610319
- Matthew Klein, MDLong Branch, NJ 077401265434005
Common questions
What is Mark Jack Der Mesropian, D.O.'s NPI number?
Mark Jack Der Mesropian, D.O.'s National Provider Identifier (NPI) is 1124309349, issued on Sep 1, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Mark Jack Der Mesropian, D.O. located?
The NPPES record lists a practice address at 300 2ND Ave, Long Branch, NJ, 07740. Phone: (732) 222-5200. Providers update this record themselves, so call before visiting.
How can I verify Mark Jack Der Mesropian, D.O.'s license?
NPPES lists New Jersey license number 25MB10061600, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Mark Jack Der Mesropian, D.O.'s MIPS final score?
The 2023 MIPS final score is 84.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.